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Finding the Fourth Proportional to 5,479.44, 7,565.14 and 4,888.94

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Solution

The fourth proportional to 5,479.44, 7,565.14 and 4,888.94 is: 6,749.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.44 : 7,565.14 = 4,888.94 : x
  2. Step 2: Convert to fraction form
    5,479.44/7,565.14 = 4,888.94/x
  3. Step 3: Cross multiply
    5,479.44x = 7,565.14 × 4,888.94
  4. Step 4: Simplify right side
    5,479.44x = 36,985,515.55
  5. Step 5: Solve for x
    x = 36,985,515.55/5,479.44
  6. Step 6: Final answer
    x = 6,749.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.